Thermal gradient chromatography devices and methods of using them
AssigneePerkinElmer Health Sciences, Inc.
InventorsEdgar D Lee, Nathan L Porter, Randal W Waite
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Abstract
Certain configurations described herein are directed to gas chromatography devices. In some instances, the gas chromatography devices may comprise at least one heating device which can be moved along a chromatography column to provide a thermal gradient to the chromatography column. In other instances, the gas chromatography devices may comprise a heating device that can receive a moving chromatography column to provide a thermal gradient to the chromatography column. The gas chromatography devices may be configured as portable devices which can be used to perform remote analyzes.
Claims20
A gas chromatography system comprising:
- a heating device configured to thermally couple to an inlet section of a gas chromatography column in a first position and to thermally couple to an exit section of the gas chromatography column in a second position, wherein the inlet section of the gas chromatography column is configured to receive a gaseous analyte mixture, wherein the gas chromatography column comprises a separation medium to separate the gaseous analyte mixture using gas chromatography, and wherein separated analytes exit from the gas chromatography column at the exit end of the gas chromatography column, the heating device configured to move longitudinally along the gas chromatography column from the first position to the second position during a gas chromatographic separation wherein the heating device is configured as a cylinder configured to move through an interior space formed by the gas chromatography column;
- and
- a processor configured to control movement of the heating device longitudinally along the gas chromatography column from the first position to the second position during the gas chromatographic separation using the heating device to provide a thermal gradient to the gas chromatography column during the gas chromatographic separation.
Dependencies are inferred from the claim text.